參數(shù)資料
型號： IMST400
文件頁數(shù)： 7/74頁
文件大?。?/td> 563K
代理商： IMST400
3 System services
/ 74
7
T400-20
Nom
Symbol
TDCLDCH
TDCHDCL
TDCLDCL
TDCerror
TDC1DC2
TDCr
TDCf
Parameter
ClockIn
pulse width low
ClockIn
pulse width high
ClockIn
period
ClockIn
timing error
Difference in
ClockIn
for 2 linked devices
ClockIn
rise time
ClockIn
fall time
Min
40
40
Max
Units
ns
ns
ns
ns
ppm
ns
ns
Notes
200
1,3
2
3
4
4
0.5
400
10
8
Notes
1 Measured between corresponding points on consecutive falling edges.
2 Variation of individual falling edges from their nominal times.
3 This value allows the use of 200ppm crystal oscillators for two devices connected together by
a link.
4 Clock transitions must be monotonic within the range
VIH
to
VIL
(table 8.3).
Table 3.1
Input clock
90%
10%
TDCr
2.0V
1.5V
0.8V
TDCerror
TDCerror
TDCerror
TDCerror
TDCLDCH
TDCHDCL
TDCLDCL
TDCf
90%
10%
Figure 3.2
ClockIn
timing
3.4
ProcSpeedSelect0–2
Processor speed of the IMS T400 is variable in discrete steps. The desired speed can be selected, up to
themaximum ratedfor aparticular component,by thethree speedselectlines
ProcSpeedSelect0-2
.The
pins are tied high or low,according to table 3.2, for the various speeds.
Currently only the20 MHzspeed selectcombination is availableonthe IMST400;the othersare notvalid
speed selectors. The frequency of
ClockIn
for the speeds given in the table is 5 MHz.
相關(guān)PDF資料
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IMST400-G20S 32-Bit Microprocessor
IMST400-J20S 32-Bit Microprocessor
IMST400-T20S 32-Bit Microprocessor
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
IMST400-G20S 制造商:未知廠家 制造商全稱:未知廠家 功能描述:32-Bit Microprocessor
IMST400-J20S 制造商:未知廠家 制造商全稱:未知廠家 功能描述:32-Bit Microprocessor
IMST400-T20S 制造商:未知廠家 制造商全稱:未知廠家 功能描述:32-Bit Microprocessor
IMST400-X20I 制造商:未知廠家 制造商全稱:未知廠家 功能描述:32-Bit Microprocessor
IMST414B-G15S 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Peripheral IC
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